Heico - HLS-12 - Wedge lock washers (Pack of 20)

HEICO-LOCK "THE LOCKING SYSTEM FOR SCREW CONNECTIONS". The locking of the screw connection is achieved - unlike conventional systems - by pre-tensioning force instead of friction. Wedge surfaces on the inside of the locking washers, radial ribs on the outside. The increased thickness expansion of the washer pair increases the clamping force. Tested system for screw locking. Especially for dynamic loads. Easy assembly and disassembly. Also for high-strength screws 8.8, 10.9 and 12.9 and corresponding nuts.